Mothproofing compound and method of using



Patented Dec; 17,1940 I i I v uni-"rep STATES care y f 2.225352MOTHPROOFlNG CO MPOUND AND ivllz'rnop Y ,-FUSING Lawrence W, Roberts,Philadelphia, Pa.

No Drawing. Application November 25, 1936,

Serial No. 112,706

16 Claims. (cl. 167-37)" This invention relates to mothprooflng'offabtioning the fabric as to hand or feel. Simiri s and tomothproofing and moth-repelling 1ar1y,-'the selected moth-repellingingredient is compounds to be used in connection therewith. sen for itsadditionalmordanting or precipi-- It has heretofore been proposed totreatfabrics ta ling action, and to cooperate with and supple- 5 withsilicofiuorides, in order to mothproof them, ment the similar functionof the aluminum sul- 5 but for one reason or another the known c0m-.phate. A5 to this latter, I have found that tarpositions have not provedentirely satisfactory. t r m t is very s r a for s sp ial For-anotherthing, when sprayed onto theimae 'pu p e. This double salt of antiterialthey' have not penetrated sufficiently to y has been found to possessinherent larvaerender the material. mothproof for more than repelling Pp i iti to its mordant about a year. Also, it has proveddiificult to on7 provide a composition in which. the fabric can t is a useful 'P P Bthe present enbe immersed with ut, r sult in an uneven tion to utilizethese materials, in appropriately color or streaking in the finishedmaterial, or combined form, not only for their own inherent anobjectionable bandit Many oth dim ul qualities but also on account oftheir -comple- 15 ties arise. in the practical application of 'mothm rsrd ting functions.

proofing compositions to fabrics, as iswell un- As the requirement forvariations in-the dederstood by those skilled in the art. sired finishof a given fabric necessitates mod- With ,11 th va i n i ti in mind,ification of the relative quantities of the alumiit may now-be,explained that the substances m l a e. a corre po di a ju tment or andsolutions or suspensions'to be applied, for t o -r p n mu t d t p nthepurpose oi my invention, comprise, broadly sate for the loss ofmordanting action by n speaking, a silicofluoride having relatively hi hincrease in the quantity thereof within limits water-solubility, adouble salt of antimony, a as l readily p at d as t e general- OFFICE vcoacting mordant and such other adjuvant mapurposes of a this inventionare understood, and 25 terials as the particular conditions mayrequire.- from a study o t specific .exemplificativns of Magnesium andammonium-silicofluorideshave the D S as described 1181,8111- been foundvery emcient in t connectionbm UThe combination of the co-actingingredients cause of their high solubility and relatively highSpecified, y, e yte -so u le S i o- Sil adsorbability' to the fabrics inconjunctionwith fluoride, tartar emetic, and aluminum sulphateappropriate mordanting agents. Other I 'sillcoas exemplified in aPreferredadaptation o e fluorides of goodwater-solubility arealsoavailinvention a been o do -produce up r o able. When used alone,thesesalts are apt --,to. results b in effectiveness of p o' fin be losteither by dusting ,off "from the treated spe vely, moth-repellingaction, and in renfabrics or during subsequent steaming or e ,dering thetreated fabrics suitable for market 35 ing of made-up fabrics orgarments,etc., hence P rp e t b la d;.'flxing .In the practicalapplication of thecomposi- H the necessity of appropria I.

agents. tion, it has also been found desirable to add an-Silicofiuorides, in general, 40 mended as protective agents againstmoths, but,

in practice, especially under conditions of the alcohol of e type 0 artin industrial practice as herein discussed, lexample- I vimpregnationwith such silicofluorldes alone does Having thus decnbed Yinvefltloni I W111 not havethe full practical value which a truly- 110Wfurnish specif c exemplificatlons thereof. protective agent shouldpossess underall the These examples are given in Vane? forihe 45 varyingconditions f mm pram-10a purpose of illustrating the adaptation of thecom- In order to retain the thpro fi ff t' f position, having regardtothe general requiresuch silicofluorides, it is important that they,ments of the trade Wlth r n t o the qualliiyi be fixed upon the fibresby a suitable agenthavappearanc? and of Partlcular material?" lngmordant properties. Such mordanting effects r '50 have mr appropriatelyY. adapted quantity of dispersing v agent such as a sulphonated higheraliphatic 40 f cetyl or lauryl alcohol, for

are attained, for the multiple purposes ofthis I EXAMPLES in n; y an appp a r t v quantite- I. Fabrics, yarns, raw stock, etc., consisting tiveadaptation of suitable water-soluble maentirely of animal fib e Iterials which will have selective properties both 1 F as affecting thehand" or feel" of the material, ms 55 moth repulsion, and fixing by wayof ,(a) About lbs. ofdyed fabric are circu- Y illustration, aluminumsulphate, or an equiva lated for about 20 minutes in a rinse bath (temlent salt,-in the present invention, performs the perature F.) to whichhasbeen added about a double function of a fixing agent for the chosen 3lbs.-of .a compound having the following come 60 silicofiuoride and asan ingredientfor condiposition: 54% silicofiuo'ride, 28% tartar emetic,o0

aluminum sulphate. sndl-l% m oo ,noonol in oboutsooibo oicoid water.

(c) About 100 unto: dyed iabric,a reflpfsdded for about 4 minutes inzaJig bath tovvwhichwhas been added a solutionzoti to 4'ihs.aot a compound having the following composition: 54%

silicotluoride, 28% tartar emetlc,:1'l% aluminum sulphate. and 1%sulphonated higher alcoholin about 400 lbs. of cold or teoid water.

uwe-r w 9-, 1(a) About 100xlbs; oiwyarn or raw stoc treated st .120" 1!.in thelast bowxor the scouring 1 1 bath. previous to dyeing, or-in thedyeing kettle liter: dyeing,1by 'themddition of l solution con-' tainingaboutdOOlbs-o! water and trom. no 8,

lbs.;oi' ecompound having the followingcom-I position: 54%;silicofluoride, 28% tarter, emetic,

17%;aluminum1 sulphate, and 1% .sulphona'ted higherialcohoi. w 7 J a rII. Fabrics-yarns, orraw stock, etc., contain-, in: less, than 25%oiflanimalliibres and more.

than 75% oi vegetable iibresu j (a) About 100 lbdoidyed fabricarecirculated; 'i'orabout 20 minutes in a bath (tempere tum 1 0', 1".) towhich hasbeen addedaboutd lbs; ,of a compolmdahaving; the followingcomposition: 54%, silicoiluoride, 28% tartanemetlc;

, 17% aluminum sulphate; ,and: 1% 'sulphonated higher alcohol.

toiwhich has beenhedded about 4 lbsvotacome pound having the} following"composition; 54%; silicoiiuoride, 28% tartar emetic, l'l'kialuminumsulphate, and 1% sulphonated higher alcoh dissolved in about 400 lbs.1oicold water. ,i (c) AboutlOO lbs; cin dyed material iflpadd 5 for about 4minutes in o m, mom which been added about .1.5 to 3 lbs. of a compound,f having the following compositions, 54% siiicofluoride, 28%tartaremetic, 17% aluminum sulphate, and i 1 9a sulphonatedrhigher alcohol owsolved inwabout 800 ,lbs. or olc or: tenid water. Z. Yamflor "nostockctc. do) About1100, lbs.,oi yarn r raw stock treated i at, 1201.411 the] securing bath pro-hom- T to dyeing, or :in :the dyeing;kettle after dyeing,

the addition or a sol I g sisting of names um (in. About 100 lbs. ofdyed 'material non mmnmflde mersedior about minutes in a: stsndinrbathbenoi the group" iluoridef and ammonium1sllicoiiuori dc; =about 30percent. of tartar emetic,:an addi i 1 m cus 17% aluminumasulbhafie. and1%-s1ilpho ted higherelcohol m, f (bl Aboutlilo lbs. r dyed material lmersed i'orsbout two minutes in a standinmbethQ to which hasbeenaddedfasolutionxoi about 3 lbsnoi a oompoundh vinglthe-iollowin'gcompo-f sition': 54% si1icofluoside.28%tlrtar emetic, 17% 1 1b,, f apomppun having the i'ollowingcompw sition: 8% silicofluo de, 30% tartaremetic, 10% 'aluminunisulphtt, h alcohoiinaboutf30Q ibs.;oi"co1d watergf, bb

c) AboutlOO s otdyed fabric are "padded" bout; which has been added ,asolution 01 2 to! lbs. of a compound I the icllowing composition: 1 54'silicofluoride, 30% tartar emetic,10% aluminum sulphate and 6%fsulphonated higher alcohol in abo oolbecicoldoitepid water. i

(a) Abo ut loil "lbshof or aw i stock are nootoooomn" ina scouring bathprevious to D silicofl uoride, :-30% tartar emetic,- 10% aluminum'suiphate, and 6% sulohonatedhigher 'alcohol.

ioregoingmexamples. and the indicationsilsi manner of; practicing Ideorspecific purposes, those y ll bein a position "adapt the solutions topunctual-mum" s; d robrlossq'mus; from the examples given iormaterialscontaining mixtures of animal and vegetableflbres,appropriateadaptationsmay bemadetor other mixtures oi varying amountsptfand vegetable fibres.

;prises*essentially i member or thergroun consiiicofluoride andanimoamount-y or: tartar posed essentially b silicosulphonated,hishehalcbhbi.

tflhef method 'ormothprooilng e afabric in o ainingyone oithe group m -8eli mo cssei lmountoftartar emetic,falumi+- numsulphateJnd i Jabricerein about 17 to 2 er composed essentially oi mberoi the group consilicoiiuoride and ammo- I niumsiiicofluoride. about ,30aper cent.oitartar which e'sbeen added about 3 {lbs conioouno having the followingcompose ti M'Zsiiicofluoride, 30,5 tartar emetic, 10%

aluminum sulpha emeticgangadditio agent imordant, and! wetting 8. Amothproofingucornoosition which cornprises essentially a water-solublesiiicoiluoride d 6% s'ulphonated; higher y desired requirement for groupconsisting ,oi magnesium siiicoiiuoride and ammonium silicofluoi-ide,about 30 Der cent. of tutu-emetic, about 10, to 17 per cent. of aluminurn' sulphate and about 1 BperJcent. of a and "ammonium silico ovegetable more: {which fabric in a water bath

